This is a PowerPact Molded Case Circuit Breaker Undervoltage Trip 24V AC, 30V DC for M/P/R Frame Circuit Breakers. This trip is certified to UL and CSA standards. PowerPact M, P and R frame circuit breakers can be used with a variety of internal and external accessories to increase application versatility and meet the demands of modern electrical distribution systems. Internal circuit breaker accessories are either factory installed or field installable. They can be installed in accessory compartments behind the circuit breaker accessory cover. These accessories are certified to UL, IEC, CSA, CE, CCC and other standards. Proven performance, industry-leading circuit breaker innovation and protection for heavy-duty commercial and industrial applications. Intelligent, integrated metering options provide a cost-effective solution to reduce energy consumption, optimize energy costs and improve energy availability in your facilities. Flexible: A comprehensive range of thermal-magnetic and electronic trip circuit breakers from 15-3000A, with the ratings, configurations and actuators to suit your applications. Simple: Common catalog numbers, standardized ratings and a comprehensive range of field-installable accessories make product selection, installation and maintenance easier than ever. Common design features, mounting holes, door panels and handle accessories.